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cos(x+a)=cosxcosa-sinxsina so cosa=5 sina=3 which means tana=3/5 a=0.54 RADIANS R=sqrt(5²+3²). =sqrt(34) so sqrt(34)cos(x+0.54)

A scalar quantity is one that has a magnitude (size) only, and no associated direction in which that size 'points'. A good example of a scalar is temperature, because temperature has a size (for example 2...

The easiest way to solve a simultaneous equation is by the method of substitution. First of all, we take the first equation, and rearrange it so that it is in terms of y. Or, in other words, rearrange it ...

Medical schools are always looking for well-rounded individuals. They are looking for those with academic successes but that isn't the only criteria that will be looked at. They want people that have show...

A common response from the student for the above question is: “I got 20km/h but it says it’s wrong! help i’m really confused”. The following two paragraphs will outline how I might attempt explain this id...